Typewriting-machine



J. A. B. SMITH. TYPEWRITING MACHINE.

APPLICATION HLED 311M128, IQIB.

Patented Mar. 16, 195-51).

, far:

I i? 3 is a View in tie feed' of the webs around the platen is' avoid This extra OPGIM'JOII IS readily learned by the operative, and the mechanism involved is very simple and the device is eflicient.

Other features an inafter appear.

In the accompanying drawings,

Figure 1 is :1 pers )ective view of a typewriting machine of t 1e fan-fold type, showing my invention applied thereto, and the parts in position prior to a lnght-fommng operation.

Fig. 2 is a diagrammatic side view of the machine, showing the position of the parts when the webs are drawn: from oil the rolls to form a bight.

d advantages will heresimilar to Fig. '2, showparts in their normal position after a i htforming operation.

'1 1e wehs 10 are supplied to the machine from rolls 11, which are mounted in bearings in any suitable manner upon the bottom rear portion of a desk or other ronvenient plaom'and from said rolls the webs are carried up to a'guide 12 y n'ovided upon the rear of the carriage Jortion 13 of the typewriting-lnaehine. From this guide 12 the webs are-led forwardly to another snide l-l over which they pass downwardly and around the under side oi the platen l5 and pin front thereof; the platen being rotated b the usual line-spacing mechanism inc uding a lever 16, ig. 1, and ratrrlustll' and other parts (not sh irnl. The carbons 18, which interleave the webs 10, are carried upon blades 19 Fig. 1 each of. which at its end is mounted upon a carrier or shifter 20 whieh runs upon rails -11 extending rearwardli' from the )laten. carried by a carriage 22, w iieh is connected to travel with the typewriter carriage 13 and which runs upon r. rail 23, Fig. l, which is pa rnllel With'the ty pew-riter carriage ru 1 ls 24.

After the writing of a form, the platen 15 is swung up, as in said Werner-y and Smith patent, to perniit theivebs 10 to be straightened out, and then a handle 25, prornled upon the carbon carrier 20, is grasped and the carbon carrier. is pressed rearwardly, thus retracting the carbon sheets 18 in ooon 'y positions opposite fresh portions or the we '5 10; so that subsequently. after the pluteirhas been returned to normal position, the {line-s ace rotative movements of the platen \vi pull forward the carbons and the carbon carrier. together with the webs. line by line. Before the typing of the fresh form begins, or before the platen is returned ,to printing position the operative, nieans'of said handle 25. pulls the carbon carrier '20 forward idly. first, hmvever, operating; a finger-piece -26 to close grippers or clamps noon the webs in. rear of the em-hen so thni the forward movement of said rails inent with said webs by said s wring by a claim:

said carbon carrier will exert a pull upon the webs at the rear of the typeu'riting machine and pull them off from the rolls 11, Fig. 2, to an eritent u'hieh may be determined by the length or stroke oi the carbon carrier. This linger-piece 26, which eontrols the grippers 27, may he opposed to a finger-pieco 28 which moves the rarhon earlier so that the operative needs onl; to grasp the finger-pieces 26, 28, between thumb and 11 or thereh; closing the grippers 27 as wel as pulling forward the carbon carrier, snitab e connections extendin from said movable linger-piece -26 to said grippers 27. Durin this idle forward movement of the (351133011 carrier, the portions of the webs 10 between the same and the platen may bulge up idly. as at '29, Fig. 2; and then the operative may press back the carbon carrier 20 to restore these intervening portions '29 of the webs with ,their carbons to normalcondition, as at 3, and at the same time permit the freshly unwound portions ill of the web: to drop idly; as ilmstrated at Z ig'. Then, upon operating the line-space lever 16 the platen 15 and its :Eeed rolls 31 iii pull Forward the webs 10 without liability of faulty ar-ion. since the paper rolls ll remain stationary until the typing of the next form is completed; whereupon the cycle of operations may be repeated.

The connections betu'evnthe' fingoi pirru 26 and the clamps or grippers 27, to operate the latter. include a link extending rearuun-dl from said finger-piece and conueeited to the upper end of an imstandinp; arm 33 fast on a rock shaft 31- jonrnaled in brackets on the carbon-shifter .\t each end oi said rock shaft 24-, Fig. 1, is fasta (lamp 3?, placed so as to engage ihe webs 10 on their inargns outside'of the carbons 18 and held our oi engagement therewith by a suing 3G coiled around one end oi": said roe: shaft. To arrest the clamps 27 and connected parts when moved out of engage- 36., there the carbonslufter-handle E25 is provided on a pin 37 against which the finger-piece '26 abuts. To grip the webs '10 in u {mightforining operation. the finger-piece 26 and. connected parts are moved against the tension of said spring 36, so that the forward ends of said clamps 2"? press the webs 10 against an elevation 38 formed on the carbonrshiiter 2U.

Variations may be resorted to within the scope of the invention and portions of the im rovements may be used without others siting thus described my invention, I

1. In a typeu'riting machine, the combination with a. traveling carriage. 01 a revolu ble platen, means for feeding sinerposed webs to and around said platen, a eimnp for tion wltli a travlingmm'ib/ f; 1 07 meang ether than; suid line? uniiseiportitiflsibf sai'd' ward tbs platen when the webs displaceingnfi V carnage for Holding a carbftm shet 'tion with r 7 bis platen, 'mcarbon shifterniqyablqfl lpll amid".

shaft on which sa i -nme'ad gather when" aglvanc" ,j said platen, and imaans rest. l H 4 1 WPeWfi g ma hine,

ev'o" [ole plat-$11, Iihe-s Ming mechmliin fat-feed.-

mg web to am gar'rmnd.saiidfplaltlifandj In a typewriting mm ing webs to am nism for moving said websf o'gwai" 41} 115 on suidvshifter fpr posrtivly hpldmg Super slim in;

mmlliy tending to qgems aigl ,qlgtmpg, s;

ciampsl and s mounted, and a finger opemtively connectdmth for closing said clamps.

lm a 7. In a. typmv'rit ing n1 a1}i l8the tion with a travelling carnagiyog a rgyohl n ble'platen themnmmeans .foi'fifee 1n the ssmig tenein i Ini ypewi'min =mach gnaflon: with,

thitdtation bi t'h "jihfien will draw (in the v biglithw." H l glateii is at rest, 111e, the;06inkxi iisb. .7 tion with a. traveling carriug'gpf a. rgj'olug .ble platen, lin-s'gacing mehharrfism forfieel around said 131M191; and" means uther thim said line-spa m {mechn glafggg pfclamp fior gripiaing said web, a,

pl gcejql'gclosing ssu Whensaid as been .fo 'med,

w iuge ble pljql l ihennsjftji" 'eedingw' s md interleafed lcgpbdn's tojuidr arbund smcl platen,

ble? phten, means; f 1'- .fgding "webs and in Qtefleamdpar and around saidfplaten, fomleimping o 1341111 :typewritfjng n hine, the domv, F613;? and 1; e are filmagbon s, and means traveling.

of a, revoluforming :1 bight of webs which may vibrate laterally to accommodate the traveling movements of said carriage, said biglitforming means being actively connected with said carbon-retracting,inesns.

14. In a typewriting machine the ooinbinationwith wtraveling carriage, of u revolula'le platen thereon, rolls of webs, means for feeding said wells in superposed position with interleaved carbons to and around the platen, means on said carriage for retracting said carbons when the webs are straightened out, and. nieansmonnted on said (n'll'idge and trnrelin'g therewith for forming a bight of webs which may i'ihrete laterally to accommodate the traveling mmernents of said carriage, said hightforming means bein operable after :1 can hon-retracting operation.

15. In :1 typewritiug machine, the com binntion with a traveling Carriage. of n reroluhle latenthereon, substantially stationary ro ls of" webs. a; line-spacing mechanism for feeding sei'd webs in superposed. position with interleaved carbons to and around said platen, a shifter on said enrria e for retracting said carbons when the we s are straightened out, and means, other than said line-spacing mechanism, operable after a cnrhon-retracting operation for drmring said webs of! from the rolls and advancing them toward said ilnten.

16. Tu n typewriting nine line; the corn hinntion with a traveling, carriage, of n revnluble platen thereon, rolls of webs, means for feeding said webs in superposed position with interleaved carbons to and around the platen, means on said ear'ri '0 for retracting said carbons-when the we s are straightened out; n olamp mounted on said enrbon-retrartinn' means, operable after a ca-rhon-letraeting operation. for gripping the webs mid drawing them 01? from the rolls, and a spring forreleasing said clamp to permit the clamp to be returned to'pos'ition for subsequently gripping mfresh portion of said webs.

17 In a typewritingmaehine, the comhination with a trnveling carriage of a revoluble platenthereon, substantially stationary rolls of webs jhaving successive forms piinted thereon, line-feeding" mochanism for feeding said webs insuper' sod position from the rolls with interleave ear-- bone to anderoundthe platen, are c-i procuble carbon-shifteron said carriage for retractin'g'sa'id carbons when the webs are straightened' out, and means on said shifter and traveling therewith for forming a bight of webs which may vibrate laterally to aceommodate the traveling movements of the carriage, said hight-fofini'n m'efms 0 ernble after the carbon-retro ing operation, said shifter being, capable of having o 68 greater forward st'roke" imparted thereto another than a eerbon-retmcting operation.

19. In a typewriting machine, the combination with n traveling carriage, of a revoluble pin-ten thereon, suhstnntiully stationary rolls of webs, line-spacin mechanism for feeding said webs in superposed position with interleaved carbons to and nrmuid the pl'a'lten, n czi'rbolrshifter traveling on and with said carriage for retracting said cairbon's when the webs zl re stritightened out sni'd shifter having a handle; and means mounted on said carbon-shifter and travelili' therewith for forming a bight of webs w iieh may vibrate laterally to aecommodate' the travel ing movements of said carriage, said bightrform'ing menus including it .pitll. of clamps, forpressing the webs to said shifter, a rboltfshnft on which said clumps ererfast, an arm first on sat-id reek shaft, in link extending between said a'rm, a fingerpiece opernt irely mounted on' said shifter handle, a stop on said handle for said fingerpiece, and e spring" nornmlly holding said clamps open I 20. In a typewriting mn'cliiue. the combination with a bra veliug carriage, of a revoluble platen, means for feeding webs and i11 terlenved czu'bons'to'undaround said platen. means for displaeinnsaid platen to permit the straightening of the webs and the retraction of the carbons, and menus mounted directly on saideerbon-irtraeting means for druwin said webs from n source of supply and ac vane-ins: toward said platen, said web-clrawing means serving to return. said wel stoward the source of so ply.

21. In s typewritin' machine, he combination with a; rerolti e platen, of rolls of webs. means for feeding said webs in superposed position with interleaved carbons to and around said platen, a reeiproonhl earbon-shifter for retracting said onrbons when the webs are straightened out, and means mounted onsnid carbon-shifter for drawing said webs off from the rolls to form a big-ht of webs between said shifter and platen when smidsliifter is moved forwardly, and to form a big-ht between said rolls and hifter when the latter is moved rearwurdly.

lnbloplaten on-said carriage, :3. reciprooahlo carbon-shifter on said can H a roll of web, the leadirqr portion of whiphis around said platen, a c amp for ippingsaidweb, and ofinger-pi'ooe for fii asmga snid clamp so that flie rotation of the platen wiili imw on the bight.

'28. In a typewriting machine, the .o'oinbi' nation with a traveling carriage, of h, revolu ble platenon said carriage a moiproeabl carbon-shifter on said 'can ia web, the leadin portion of which is around amp fol-(grigping said web,j

said platen, a and a; finger-piece for sm'gsaid clamp when said carbon-shifter :isJnoved forwardly and rem'wzu'dly aftr a corbon retracting operation for forming a; bightv of web, so that; the rotation ofthe platen will draw on the bighfi.

24. In atypewriting. machine, they com bi nation with a traveling camriago, of a revo- V luble platon, means for 'feed ingwehs and intorloovedcarbons Ito and ,arounfl said platen, means for r he strfiightonmg of thogwebs andithe retractioniqf 'oai bons, aj 'recipitooahle carbonr' 'laoingrssiidipldten to parmil;

shi-flzoiyior ieigractingjysa d carbons, and moansmoonted on smdtarbon-shiftat for to a bightof awobs, that the rotation f0? the 'piatn Will .5132 on the bight, said big i; being formed at alternate reciprocal fi nsMsoii-s e i A 1 w In otypomitiiig machine, thooombh {nation-Malia travaling'oarriago, of a. revoli' bla gluten rolls of webs means for fooding hard we 5 in superposed position with inteilea'vod carbons to and around the phiten, and a sin sold carbons and o idmwing. said webs o from thoroHs'to form 1i bight of webs which 1e device for retracting may vibratelate ally to accommodate the traveling movements of said .0

I Y J. A; 13.8 TH;

v Jam P. Tnomm. V 

